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Vertical wave-in-deck loading and pressure distribution on fixed horizontal decks of offshore platforms


Abdussamie, N and Amin, W and Ojeda, R and Thomas, G and Drobyshevski, Y, Vertical wave-in-deck loading and pressure distribution on fixed horizontal decks of offshore platforms, Proceedings of the 24th International Ocean and Polar Engineering Conference, 15-20 June 2014, Busan, Korea, pp. 898-906. ISSN 1098-6189 (2014) [Refereed Conference Paper]

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Copyright 2014 ASME

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The risk assessment of wave-in-deck loading on fixed platform decks requires accurate prediction of both global and local loading. In this paper, the vertical loading generated on the bottom plate of a rigidly mounted box-shaped structure due to unidirectional regular waves is computed by means of two approaches. The first is a component-based approach based on Kaplan's method and the second is a computational fluid dynamics (CFD) approach based on the volume of fluid (VOF) method implemented in the commercial CFD code FLUENT. Different parameters including wave steepness and air gap are tested. The obtained results are validated against tank experiments. The study revealed that when the wave-in-deck events are measured globally and locally the load magnitude, its duration as well as its distribution is better evaluated and the uncertainty involved with these impulsive loads can be reduced. It was found that in many cases Kaplan's method underestimates the magnitude of the force in the upward direction. CFD force predictions were found to be in better agreement with the measured forces. Copyright © 2014 by the International Society of Offshore and Polar Engineers (ISOPE).

Item Details

Item Type:Refereed Conference Paper
Keywords:Fixed platform decks; wave-in-deck loading; local pressure measurements.
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ocean engineering
Objective Division:Energy
Objective Group:Mining and extraction of energy resources
Objective Field:Oil and gas extraction
UTAS Author:Abdussamie, N (Dr Nagi Abdussamie)
UTAS Author:Amin, W (Dr Walid Amin)
UTAS Author:Ojeda, R (Dr Roberto Ojeda Rabanal)
UTAS Author:Thomas, G (Professor Giles Thomas)
ID Code:90391
Year Published:2014
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2014-04-02
Last Modified:2018-04-05

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